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摘要: 金属丝网多孔材料是一类孔隙可控、高比表面积、高强度、价格低廉的多孔材料，由于具有高透气性和高过滤精度，在高温烟气、油浆等过滤分离领域得到了广泛应用。由于金属丝网多孔材料同时具有高比表面积、开孔特性、高孔隙度、高强度和孔隙可逐级调控等特性，在光催化、机车尾气净化、高效换热、爆燃冲击防护等领域得到重视。本文介绍了金属丝网多孔材料的结构及制备方法，着重总结了金属丝网多孔材料在过滤分离、催化、高效换热、爆燃防护等领域的应用进展，并对其应用前景和发展方向进行了展望。Abstract: Metal wire mesh porous materials are kinds of porous materials with the controllable pores, high specific surface area, high strength, and low cost, which have been widely used in the filtration separation fields of high temperature flue gas and slurry oil, because of the high permeability and high filtration precision. Furthermore, due to the high specific surface area, open pore structure, high porosity, high strength, and adjustable graded pore size, the metal wire mesh porous materials have been paid attention in the fields of photocatalysis, combustion engine emission abatement systems, efficient heat transfer, and explosion suppression. The structure and preparation methods of metal wire mesh porous materials were briefly introduced in this paper, the application progress on the fields of filtration separation, catalysis, efficient heat transfer, and explosion suppression was emphatically summarized, and the application prospect and development direction were also proposed.
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图 1 典型多层烧结金属丝网外观形貌：（a）截面；（b）表面
Figure 1. Appearance of the typical multilayer sintered metal wire mesh: (a) the cross section; (b) the surface
图 2 表面改性前后不锈钢丝网表面（（a）～（c））及截面（d）显微形貌（框内小图是未修饰金属丝网表面形貌）[8]
Figure 2. Scanning electron microscope (SEM) images of the stainless steel wire mesh in the surface ((a)~(c)) and cross-sectional (d) view before and after surface modification (the insets illustrate the original mesh before surface modification)[8]
图 3 金属丝网表面的水下油接触角（a）和滚动角（b）
Figure 3. Under-water oil contact angle (a) and oil sliding angle (b) of the mesh
等级 汽泡试验孔径 / µm 初始冒泡压力 / kPa 过滤精度* / µm 透气性 / (m3·h−1·kPa−1·m−2) 环拉强度 / MPa 耐压强度 / MPa NF005 ≤20 ≥5.00 2.5～7.5 ≥120 ≥30 ≥3 NF010 ≤25 ≥3.70 7.5～12.5 ≥1100 ≥30 ≥3 NF020 ≤48 ≥1.90 17.5～22.5 ≥2100 ≥30 ≥3 NF030 ≤76 ≥1.20 27.5～35.0 ≥3000 ≥30 ≥3 NF050 ≤110 ≥0.85 45.0～60.0 ≥4000 ≥30 ≥3 注：*过滤效率为98%时，气体中阻挡的颗粒尺寸值 
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表 2 金属丝网过滤器的气固过滤性能
Table 2. Gas/solid filtration performance of the wire metal mesh filtration
滤芯类型 滤芯尺
寸 / mm过滤精
度 / μm过滤效
率 / %压差 /
kPa初始压
降 / kPa泡点压
力 / kPa透气性 /
(m3·h−1·kPa−1·m−2)耐压强度 / MPa 孔隙度 /
%外压 内压 金属烧结丝网 ϕ65×1000 5 ≥99.8 ≤10 3.72 5 260 1.2 0.4 38
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